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When it comes to finding out whether or not you're being lied to, Gepetto had it easy. All it took was one look at Pinocchios's growing schnoz and he knew. Of course, most of us don't have it that easy but could sure benefit if we did.

It seems that we're largely a nation of liars, with some estimates saying that most people lie to others one or twice a day, and in about 30 percent to 38 percent of our interactions in all.

Seven Common Signs of Lying

No eye contact. Generally, if someone is lying they will not look you in the eye, at least during a certain part of the conversation.

Change in voice. A change in the pitch of a person's tone,

Unusual body language. If a person taps their foot a lot, fidgets with their hands, raises their shoulders, turns away from you or brings their hand to their face

Something sounds fishy. Making statements that contradict each other,

Overly defensive.

Changes subject easily.

Humor or sarcasm.